Messages in this thread | | | Date | Sun, 24 Aug 2003 22:59:38 +0200 (MEST) | From | Mikael Pettersson <> | Subject | Re: Pentium-M? |
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On Sun, 24 Aug 2003 22:20:13 +0200, Christian Axelsson <smiler@lanil.mine.nu> wrote: >Hmm.. I have compiled my whole system with -march=pentium4 and yet not >had a single breakage. Are you sure that this is p3?
Oh yes. The core is most definitely P6+tweaks and not NetBurst. This can be deduced from facts like: - CPUID family is 6 not 15 - performance counter architecture is like PIII with some minor tweaks but definitely nothing like P4 - treated separately from NetBurst in code optimization manual
The reason compiling with -march=pentium4 doesn't break is that the differences ISA-wise are almost nil.
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